Answers
Answer:
9. x=-6, y=0
10. x=-9, y=-10
11. x=3, y=-1
Step-by-step explanation:
[tex]2x-9y=-12\\3x+18y=-18[/tex]
Multiply the first equation by 2.
[tex]4x-18y=-24\\3x+18y=-18[/tex]
Add the equations.
[tex]7x=-42[/tex]
[tex]x=-6[/tex]
We figured out x now we have to figure out y. To figure out y plug in x into any equation.
[tex]2(-6)-9y=-12[/tex]
[tex]-12-9y=-12[/tex]
[tex]-9y=0[/tex]
[tex]y=0[/tex]
Your answer is x = -6 and y = 0 for number nine.
[tex]6x+3y=24\\2x+3y=-12[/tex]
Change the signs of the second equation becuase 3y and 3y are both positive. We need one of them to be negative.
[tex]6x+3y=24\\-2x-3y=12[/tex]
Add them.
[tex]4x = 36[/tex]
[tex]x=9[/tex]
Now we have to figure out y.
[tex]2(9)+3y=-12[/tex]
[tex]18+3y=-12[/tex]
[tex]3y=-30[/tex]
[tex]y=-10[/tex]
x=-9 and y=-10 is your answer to number ten.
[tex]10x+5y=25\\-7x-3y=-18[/tex]
[tex]30x+15y=75\\-35x-15y=-90[/tex]
[tex]-5x=-15[/tex]
[tex]x=3[/tex]
[tex]-7(3)-3y=-18[/tex]
[tex]-21-3y=-18[/tex]
[tex]-3y=3[/tex]
[tex]y=-1[/tex]
x=3 and y=-1 is the answer to number eleven. I hope this helps! Let me know if I got anything wrong.
Related Questions
Solve this system of equations: y=2x x=-y+6
plz don't guess
Answers
y = 2(-y + 6)
y = -2y + 12
3y = 12, y = 4
4 = 2x, x = 2
Solution: x = 2, y = 4
Delaney has $28.00 and buys a shirt for 14.00. Delaney used the equation 14x = 28 to model her scenario, where x represents the amount of money she has left.
After solving her equation, Delaney says the solution x = 2, means that she has $2.00 left. Is she CORRECT? Why or why not?
Answers
What is the quotient of 5/12 and 1 and 1/6?
Answers
Answer:
5/14
Step-by-step explanation:
The quotient of the given numbers 5 / 12 and 1(1/6) will be ( 5 / 14 ).
What is a quotient?A quotient in mathematics is the amount created by dividing two numbers. The term "quotient" is used frequently in mathematics and is sometimes known as the integer portion of a division, a fraction, or a ratio.
Given fractional numbers are 5 / 12 and 1(1/6). The quotient will be calculated as below:-
Quotient = ( 5 / 12 ) ÷ ( 1 ( 1 / 6)
Quotient = ( 5 / 12 ) ÷ ( 7 / 6 )
Quotient = ( 5 / 12 ) x ( 6 / 7 )
Quotient = 5 / 14
Therefore, the quotient of the given numbers 5 / 12 and 1(1/6) will be ( 5 / 14 ).
To know more about a quotient follow
https://brainly.com/question/673545
#SPJ2
The weights of four puppies are shown in pounds
Answers
Answer:9 3/4, 9.5, 9 3/8, 9.125
Step-by-step explanation:
PLEASE PLEASE im begging you help me
Answers
Answer:
i don't really know but i'll try to figure it out
Step-by-step explanation:
Q.1. The side length of a square tablecloth is 5s^2 cm. Find the area of the tablecloth.
Q.2. Will the tablecloth completely cover a square tablecloth with area 20s^4 cm^2? Explain.
Answers
What is the product of −2/12 and −3/13? −8/13 −6/16 6/16 8/13
Answers
I’ll give brainlist to the correct one to both answers
Answers
Bow:
The first is 16ft below sea level.
Key word: Below
The integer for this one is -16
Stern:
The second is 70ft below sea level.
Key word: Below
The integer for 70ft below is: -70
Answer
u see the bow is 16ft and the stern 70 ft below ground now u use integers.
Step-by-step explanation:
hope this help a bit im not the best i at least give me thank you!
The height of a baseball in feet x seconds after a batter hits it can be represented by the function f(x)=−2x2+10. How many feet high is the baseball after 2 seconds?
Answers
Answer:
So, at 2 seconds the baseball reaches its maximum height and its maximum height is 69 feets.
Step-by-step explanation:
Question 3
1 pts
Launch Problem 1
Freddy says that 3/6 - 1/3 - 2/3 because all you have to do is subtract the
numerators and subtract the denominators. Is Freddy correct or incorrect? You may draw
a fraction model to support your thinking.
3. What is the answer to this subtraction problem?
Ovation
Answers
Answer:
Incorrect
The correct answer is 1/6
Step-by-step explanation:
Freddy is incorrect. You are not supposed to subract the denominators. When you are solving the equation you have to find a common denominator. You can only subtract the numerator, and the denominator is the same.
Find the LCM. The LCM in this case is 6.
[tex]\frac{3}{6} -\frac{2}{6}[/tex]
Remember, only subtract the numerators. The denominator will still be 6.
[tex]\frac{1}{6}[/tex]
1/6 is the correct answer. I hope this helps you!
Emily is going to the movies this weekend with some friends. they have a total of $54 to spend. Emily wants a large popcorn that is $12. If each movie ticket costs $6, how many tickets can Emily buy?
Answers
You have to do
54 - 12= 42
Then divide 42 by 6 which equals 7
6x+12=54
-12 -12
———————
6x = 42
——————-
6x 6x = 7
The answer will be 7
A company produces screens of different sizes. Based on the table, could there be a relationship between the number of pixels and the area of the screen? If so, write an equation representing the relationship.
Answers
1 in =5184
Step by step
The equation representing the given situation is y = 5184x.
What is an Equation?An equation is the statement of two expressions located on two sides connected with an equal to sign. The two sides of an equation is usually called as left hand side and right hand side.
There are given values for the square inches of screen and the number of pixels.
If there is a proportional relationship between the number of pixels and the area of the screen,
the equation will be of the form y = kx, where k is a constant of proportionality.
31,104 = 6k
k = 31,104 / 6 = 5184
373,248 = 72k
k = 373,248 / 72 = 5184
544,320 = 105k
k = 544,320 / 105 = 5184
1,555,200 = 300k
k = 1,555,200 / 300 = 5184
The equation is, y = 5184x
Hence the equation is y = 5184x.
To learn more about Equations, click :
https://brainly.com/question/28730073
#SPJ5
Please help. I need answers sometime tomorrow but today would be nice. I am giveing the brainlist away to the smartest answer. Please give the answers in fraction form.
Answers
Answer:
10) 7/4
Step-by-step explanation:
help please help ............
Answers
Answer:
[tex](i)area \: and \: perimeter \\ (ii) \: 12cm \\ (iii) \: 16m\\ (iv) \: {32cm}^{2} \\ (v) \: 5cm \\ (vi) \: {50 \: cm}^{2} \\ (vii) \: 8cm \\ (viii) \: perimeter[/tex]
Step-by-step explanation:
I'm not sure about the first one
In Maryland, the sales tax is 6%. If you buy a shirt for $38, how much is the tax?
Answers
Answer:
$2.28
38x.06
Brainlyest Pls
Sydney applied the steps below to find the product of (3.1)(–1.6).
Step 1: (3.1)(–1.6) = (–1.6)(3.1)
Step 2: = _______________
Step 3: = (–4.8) + (–0.16)
Step 4: = –4.96
Which expression correctly fills in the blank in Step 2?
(1.6)(3) – (1.6)(0.1)
(–1)(3) + (–0.6)(0.1)
(1)(3) – (0.6)(0.1)
(–1.6)(3) + (–1.6)(0.1)
Answers
Answer:
so the answer would be D) (–1.6)(3) + (–1.6)(0.1)
Step-by-step explanation:
to get the numbers in step 3
multiply -1.6 by 3
then multiply -1.6 by 0.1
and add them together
answer is D) (–1.6)(3) + (–1.6)(0.1)
Answer:
d
Step-by-step explanation:
HELP I did it BUT I got it wrong , can you please tell me the correct answer and show step by step!! tysm, thank you so much.
Answers
Answer:
y= -6/2 -3
Step-by-step explanation:
Since the slope is going down it is negative, and you miscounted it is -6/2 as the slope, and since it started on -3 on the y axis that is y. I hope this helps:)
Answer:jsjdjdjd
Step-by-step explanation:
Urjdjdjd
expand the expression: 1/3(12d + e)
Answers
Answer:
4d + e/3
1/3 x 12d + 1/3e
1x12d/3+1/3e
12d/3 + 1/3e
4d + 13e
4d + e/3
Identify the parts of the following equation. y = -3x - 8
Y-intercept is ________
Slope is ___________
Please note that anyone who answers this post with random letters and or numbers that have nothing to do with this mathematics problem will be deleted or reported.
Answers
y intercept= -8
Slope= -3 or -3/1
Answer:
Y-intercept : -8
Slope:-3
Step-by-step explanation:
Do you need the work??
40 POINTS PLEASE HELPP !
Answers
step 1
Step-by-step explanation:
she added instead of subtracting.
okay i need more help due in 30 mins
Answers
my friends want a giant lego kit for 50$ and I buy it with 500 dollars and 89 cents how much would I get back
Answers
Answer:
$450.89
Step-by-step explanation:
500.89 - 50= $450.89
Answer:
$446.89 if your including tax
Step-by-step explanation:
The map of a walking trail is drawn on a coordinate grid with three points of interest. The trail starts at R(−2, 4) and goes to S(3, 4) and continues to T(3, −1). The total length of the walking trail is ___
units. (Input whole numbers only.)
HELPP ME PLSS
Answers
Answer:
Length from R(-2, 4) to S(3, 4) is sqrt((3 - (-2))^2 + (4 - 4)^2) = sqrt(5)^2 = 5 units
Length from S(3, 4) to T(3, -1) is sqrt((3 - 3)^2 + (-1 - 4)^2) = sqrt(-5)^2 = 5 units
Therefore, total length = 5 + 5 = 10 units.
Step-by-step explanation:
meowster chief has your back my friend
Jackson's mother commutes 30 km to work each way every weekday. She takes 2 weeks’ vacation each year.
What distance does she commute in a year?
Write a single expression to represent the problem.
Answers
Answer:
1. 14520
Step-by-step explanation:
2. Let x stand for the number of days. 60x-600 is your equation.
Step by step explanation :
Plz answer ASAP
Thank you
Answers
Answer:
Step-by-step explanation:
Falso
Distance from (-2, 4) and (5, 1)?
Answers
Answer:
Approximately 7.6
Step-by-step explanation:
Answer:
1. 6 2. 4
Step-by-step explanation:
Jane buys some clothes at Macy’s. The cost of her purchases are $78.25. She has a coupon for 30% off. Sales tax is 8% in her state. How much will Jane pay for the clothes? Round your answer to the nearest cent.
Answers
Answer:
$85.10
Step-by-step explanation:
first find how much the coupon takes off
78.25 / 30 = 2.60
78.25 - 2.60 = 75.65
then find the sales tax
75.65 / 8 = 9.45
75.65 + 9.45 = 85.10!
hope this helps!
lins family has completed 70% of a trip they have traveled 35 miles how long is the whole trip
Answers
Answer:
The distance of the whole trip is 50 miles.
Step-by-step explanation:
Let the distance of the whole trip be x.
70% x = 35 miles
(70/100)x = 35 miles
x = 35 * (100/70) miles
x = 50 miles
Therefore, the distance of the whole trip is 50 miles.
Hope this helped!
Answer:
50
Step-by-step explanation:
Percantage Lin's family covered = 70 %
The distance they had travelled= 35 miles
The total distance of the trip = 70 / 100 x X = 35
( explanation : the formula to find the percentage of something is "percentage/ 100 of the total " so we used linear equation.... and so we made use of [this much percentage of "x" or something is this much] )
I hope you understood and this is right !
Line l is a straight line.
Line l is a straight line. 2 line intersect line l to form 4 angles. From top left, clockwise, the angle are: x, y, z, w.
Which statements are true about the angles in the figure? Select two options.
Angle x and angle y are supplementary angles.
Angle W and angle Z are a linear pair.
Angle W and angle Y are adjacent angles.
Angle X and Angle Z are vertical angles.
Angle Z and angle Y are complementary angles angles.
Answers
∠x and ∠y are supplementary angles, ∠w and ∠z are a linear pair, and ∠z and ∠y are complementary angles. Then the correct statements are A, B, and E.
What is an angle?Angle is the space between the line or the surface that meets. And the angle is measured in degree. For complete 1 rotation, the angle is 360 degrees.
Supplementary angle - Two angles are said to be supplementary angles if their sum is 180 degrees.
Corresponding angle - If two lines are parallel then the third line. The corresponding angles are equal angles.
Vertically opposite angle - When two lines intersect, then their opposite angles are equal.
Alternate angle - If two lines are parallel then the third line will make a z-angle and z-angles are equal angles with the parallel lines.
Complementary angle - Two angles are said to be complementary angles if their sum is 90 degrees.
Line l is a straight line. 2 lines intersect line l to form 4 angles.
From the top left, clockwise, the angle is; x, y, z, w.
Angle x and angle y are supplementary angles. This is correct.
Angle w and angle z are a linear pair. This is correct.
Angle w and angle y are adjacent angles. This is incorrect.
Angle x and Angle z are vertical angles. This is incorrect.
Angle z and angle y are complementary angles. This is correct.
More about the angled link is given below.
https://brainly.com/question/15767203
Answer:
A, B, E, or 1, 2, 5.
helppppp
me anyone :(
Answers
Answer:
b
Step-by-step explanation:
It's easy it's B need me to explain?